Fluorescent microspheres are a mainstay in diagnostics and life sciences research, finding use as fluorescent markers, assay substrates, and instrument standards. In order to meet the unique performance criteria required of microparticles in these different applications we stock an extensive inventory of fluorescent microspheres and offer custom dyeing services.

Fluorescent Polymer

Our non-functionalized microspheres are suitable for coating via adsorption. See spectra for available fluorescent dyes. See TechNote 204, Adsorption to Microspheres, for a general adsorption protocol. Fluorescent polymer microspheres are available in these standard volumes: 1mL, 5mL, 10mL, and 100mL.

*Please note: If you are NOT ordering via website, please specify a lot number if multiple lots are available.  
Catalog Number Fluorescence Color Nominal Diameter Specification Range
FSDG001 Dragon Green 0.05µm 0.040 - 0.060µm
FSFR001 Flash Red 0.05µm 0.040 - 0.060µm
FSDG002 Dragon Green 0.20µm 0.190 - 0.210µm
FSSY002 Suncoast Yellow 0.20µm 0.190 - 0.210µm
FSFR002 Flash Red 0.20µm 0.190 - 0.210µm
FSDG003 Dragon Green 0.50µm 0.470 - 0.530µm
FSPP003 Plum Purple 0.50µm 0.470 - 0.530µm
FSFR003 Flash Red 0.50µm 0.470 - 0.530µm
FSDG004 Dragon Green 1.00µm 0.95 - 1.05µm
FSEG004 Envy Green 1.00µm 0.95 - 1.05µm
FSPP004 Plum Purple 1.00µm 0.95 - 1.05µm
FSFR004 Flash Red 1.00µm 0.95 - 1.05µm
FSDG005 Dragon Green 2.00µm 1.80 - 2.20µm
FSPP005 Plum Purple 2.00µm 1.80 - 2.20µm
FSFR005 Flash Red 2.00µm 1.80 - 2.20µm
FSDG006 Dragon Green 4.00µm 3.80 - 4.20µm
FSEG006 Envy Green 4.00µm 3.80 - 4.20µm
FSFR006 Flash Red 4.00µm 3.80 - 4.20µm
FSDG007 Dragon Green 7.5µm 7.30 - 7.70µm
FSSY007 Suncoast Yellow 7.5µm 7.30 - 7.70µm
FSFR007 Flash Red 7.5µm 7.30 - 7.70µm
FSEG008 Envy Green 10.0µm 9.50 - 10.50µm
FSDG009 Dragon Green 15.00µm 14.5 - 15.50µm
FSDG011 Dragon Green >25.00µm >25.00µm
FS0

Fluorescent Carboxyl Polymer

Biomolecules may be covalently immobilized to carboxyl-functionalized microspheres. A general coupling protocol is provided in TechNote 205, Covalent Coupling. Fluorescent carboxyl microspheres and Europium chelate microspheres are available in these standard volumes: 1mL, 5mL, 10mL, and 100mL. See spectra for available fluorescent dyes. See also our Quantumplex™ kits for suspension array development.

*Please note: If you are NOT ordering via website, please specify a lot number if multiple lots are available.  
Catalog Number Fluorescence Color Nominal Diameter Specification Range
FCDG001 Dragon Green 0.05µm 0.040 - 0.060µm
FCFR001 Flash Red 0.05µm 0.040 - 0.060µm
FCDG002 Dragon Green 0.10µm 0.090 - 0.110µm
FCDG003 Dragon Green 0.20µm 0.190 - 0.210µm
FCSG003

Surf Green

0.20µm 0.190 - 0.210µm
FCFR003 Flash Red 0.20µm 0.190 - 0.210µm
FCGB003 Glacial Blue 0.20µm 0.190 - 0.210µm
FCDG004 Dragon Green 0.40µm 0.370 -0.430µm
FCFR004 Flash Red 0.40µm 0.370 -0.430µm
FCDG005 Dragon Green 0.50µm 0.470 - 0.530µm
FCFR005 Flash Red 0.50µm 0.470 - 0.530µm
FCDG006 Dragon Green 1.0µm 0.95 - 1.05µm
FCEG006 Envy Green 1.0µm 0.95 - 1.05µm
FCSY006 Suncoast Yellow 1.0µm 0.95 - 1.05µm
FCGB006 Glacial Blue 1.0µm 0.95 - 1.05µm
FCFR006 Flash Red 1.0µm 0.95 - 1.05µm
FCSY007 Suncoast Yellow 2.0µm 1.80 - 2.20µm
FCDG008 Dragon Green 5.0µm 4.80 - 5.20µm
FCEG008 Envy Green 5.0µm 4.80 - 5.20µm
FCGB008 Glacial Blue 5.0µm 4.80 - 5.20µm
FCFR008 Flash Red    5.0µm 4.80 - 5.20µm
FCDG009 Dragon Green 10.0µm 9.50 - 10.50µm
FC0

Europium chelate

Our europium products offer extremely bright fluorescence and exceptional stability, in addition to well functionalized carboxylated surfaces for the covalent attachment of ligand. See PDS 741.pdf. See spectra for available fluorescent dyes.

Catalog Number Fluorescence Color Nominal Diameter Specification Range
FCEU001 Europium Chelate 0.10µm 0.090 - 0.110µm
FCEU002 Europium Chelate 0.20µm 0.190 - 0.210µm
FCEU003 Europium Chelate 0.30µm 0.270 - 0.330µm

Fluorescent Magnetic Polymer

Both Encapsulated (ME catalog codes) and Classical (MC catalog codes) superparamagnetic microspheres are synthesized using a process that results in the distribution of iron oxide crystals throughout the polymer matrix. For specific information on the use of fluorescent magnetic particles for cell labeling & tracking, see TSD 0748. The surfaces of Encapsulated magnetic microspheres are expected to be free of iron oxide, while the Classical version will have some exposed iron oxide. COMPEL microspheres (UMC catalog codes) are highly uniform and spherical. Fluorescent magnetic microspheres are available in these standard volumes: 1mL, 5mL, 10mL, and 100mL. See spectra for available fluorescent dyes.

*Please note: If you are NOT ordering via website, please specify a lot number if multiple lots are available.  
Catalog Number Description Fluorescence Color Nominal Diameter Specification Range Product Data Sheet Safety Data Sheet
MCDG001 Classical Magnetic Polymer Dragon Green 0.9µm 0.50 - 2.00µm PDS 731.pdf SDS MF220.pdf
MCFR001 Classical Magnetic Polymer Flash Red 0.9µm 0.50 - 2.00µm PDS 731.pdf SDS MF220.pdf
MEDG001 Encapsulated Magnetic Polymer Dragon Green .86µm 0.50 - 2.00µm PDS 731.pdf SDS MF220.pdf
MEFR001 Encapsulated Magnetic Polymer Flash Red .86µm 0.50 - 2.00µm PDS 731.pdf SDS MF220.pdf
MEDG002 Encapsulated Magnetic Polymer Dragon Green 1.63µm 0.50 - 2.00µm PDS 731.pdf SDS MF220.pdf
MESY002 Encapsulated Magnetic Polymer Suncoast Yellow 1.63µm 0.50 - 2.00µm PDS 731.pdf SDS MF220.pdf
MEGB002 Encapsulated Magnetic Polymer Glacial Blue 1.63µm 0.50 - 2.00µm PDS 731.pdf SDS MF220.pdf
MEFR002 Encapsulated Magnetic Polymer Flash Red 1.63µm 0.50 - 2.00µm PDS 731.pdf SDS MF220.pdf
UMGB001 COMPEL™ Magnetic COOH modified Glacial Blue 3µm 2.50 - 3.50µm PDS 705.pdf SDS MF221.pdf
UMDG001 COMPEL™ Magnetic COOH modified Dragon Green 3µm 2.50 - 3.50µm PDS 705.pdf SDS MF221.pdf
UMEG001 COMPEL™ Magnetic COOH modified Envy Green 3µm 2.50 - 3.50µm PDS 705.pdf SDS MF221.pdf
UMFR001 COMPEL™ Magnetic COOH modified Flash Red 3µm 2.50 - 3.50µm PDS 705.pdf SDS MF221.pdf
UMGB002 COMPEL™ Magnetic COOH modified Glacial Blue 6µm 5.50 - 6.50µm PDS 705.pdf SDS MF221.pdf
UMDG002 COMPEL™ Magnetic COOH modified Dragon Green 6µm 5.50 - 6.50µm PDS 705.pdf SDS MF221.pdf
UMFR002 COMPEL™ Magnetic COOH modified Flash Red 6µm 5.50 - 6.50µm PDS 705.pdf SDS MF221.pdf
UMGB003 COMPEL™ Magnetic COOH modified Glacial Blue 8µm 7.50 - 8.50µm PDS 705.pdf SDS MF221.pdf
UMDG003 COMPEL™ Magnetic COOH modified Dragon Green 8µm 7.50 - 8.50µm PDS 705.pdf SDS MF221.pdf
UMFR003 COMPEL™ Magnetic COOH modified Flash Red 8µm 7.50 - 8.50µm PDS 705.pdf SDS MF221.pdf

Fluorescent Protein Coated Polymer

Our inventory includes a variety of streptavidin coated fluorescent microspheres. Please select the catalog code link below or contact our Customer Service Department for specific availability. See spectra for available fluorescent dyes.

Catalog Number Coating / Fluorescence Color Nominal Diameter Specification Range Product Data Sheet
CFDG001 SA / Dragon Green 0.20µm 0.190 - 0.210µm PDS 721.pdf
CFDG002 SA / Dragon Green 0.40µm 0.370 - 0.430µm PDS 721.pdf
CFFR002 SA / Flash Red 0.40µm 0.370 - 0.430µm PDS 721.pdf
CFDG003 SA / Dragon Green 0.50µm 0.470 - 0.530µm PDS 721.pdf
CFDG004 SA / Dragon Green 1.00µm 0.95 - 1.05µm PDS 721.pdf
CFFR004 SA / Flash Red 1.00µm 0.95 - 1.05µm PDS 721.pdf

StarLight™ Calibration Slides

Our StarLight™ Calibration Slides feature vibrant ~6µm fluorescent microspheres dyed with a single fluorophore for basic imaging checks and calibration. Our four standard versions are appropriate for use with common microscope filter sets: Glacial Blue (360, 450), Dragon Green (480, 520), Envy Green (525, 565), and Flash Red (660, 690). The calibration slides are available individually or as the full 4-slide collection. See fluorophore spectra here.
Catalog Number Description Product Data Sheet
SL1GB StarLight™ Calibration Slide - Glacial Blue PDS 857.pdf
SL1DG StarLight™ Calibration Slide - Dragon Green PDS 857.pdf
SL1EG StarLight™ Calibration Slide - Envy Green PDS 857.pdf
SL1FR StarLight™ Calibration Slide - Flash Red PDS 857.pdf
SL04K StarLight™ Collection - Slide 4 -Pack PDS 857.pdf

Dragon Green Intensity Standard

The Dragon Green Intensity Standard is a kit consisting of five individual populations of ~8µm polystyrene-based microspheres dyed with increasing amounts of the Dragon Green fluorophore. Dragon Green is an excellent spectral surrogate for fluorescein, and is suitable for use with fluorescein filter sets. View excitation and emission spectra here.
 

Catalog Number Description Product Data Sheet Safety Data Sheet
DG06M Dragon Green Intensity Standard (5 Intensities) PDS 704.pdf SDS FG006.pdf

Flash Red Intensity Standard

The Flash Red Intensity Standard is a kit consisting of five individual populations of ~8µm polystyrene-based microspheres dyed with increasing amounts of the Flash Red fluorophore. As Flash Red is spectrally similar to Cy™5, traditional red fluorophore filter sets (e.g. Cy™5/microscope, PE-Cy™5 or APC/cytometer) may be used with this standard. View excitation and emission spectra here.

Catalog Number Description Product Data Sheet Safety Data Sheet
FR06M Flash Red Intensity Standard (5 Intensities) PDS 704.pdf SDS FG006.pdf

Flow Cytometry

See also our extensive Flow Cytometry products.